sepehr 2e4f9dcd83 feat: auto-detect user language from browser settings ...

Fixes issue where interface always defaulted to English for new users.
Now automatically detects and applies browser language on first visit.

Changes:
- lib/i18n/LanguageProvider.tsx:
  - Add browser language detection using navigator.language
  - Check if detected language is in supported languages list
  - Auto-save detected language to localStorage
  - Update HTML lang attribute for proper font rendering

Behavior:
- First visit: Detects browser language (e.g., fr-FR → fr)
- Returning visits: Uses saved language from localStorage
- Fallback: Defaults to English if language not supported

Result:
✓ French users see French interface automatically
✓ All supported languages work (en, fr, es, de, fa, it, pt, ru, zh, ja, ko, ar, hi, nl, pl)
✓ Better UX for international users

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

2026-01-12 22:03:01 +01:00

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